Only really works when one writes the date in that teeth-itch-making USian way, but today, 3.14.15 9:26:53 captures the first ten digits of pi – which happens once a century (according to David Brin on FB).
So, I’m making Quiche Lorraine for lunch – quiche totes counts as a pie. Mmmm. Pie. I just can’t carve the pi into the top crust – I might try and make a pi pattern with bacon halfway through the cooking?